Average: This node calculates the average value between two
terrains.
Min:
This node calculates the minimum value of two terrains.
Max:
This node calculates the maximum value of two terrains.
Alpha-blend: This node creates an alpha composition between two
terrains at locations defined by a mask.
Blend: This node creates a composition between two
terrains based on the selected blend mode.
Full composition: This node gives maximum freedom to compose
two terrains. The second terrain can be translated in the X and Y
axis, scaled, and rotated before composing it with the first
terrain.
Stamping: This node inserts copies of a terrain on a second
terrain.